目录树加载并绑定右键点击事件

 1 using System.Collections;
 2 using System.Drawing;
 3 using System.IO;
 4 using System.Linq;
 5 using System.Windows.Forms;
 6 
 7 namespace menuTreeWITHrightMouseClick
 8 {
 9     public partial class Form1 : Form
10     {
11         string strRootFolderPath = @"D:\CODE";
12         TreeNode rootNode;
13 
14         public Form1()
15         {
16             InitializeComponent();
17             rootNode = new TreeNode(strRootFolderPath);
18             BangdingTreeView(rootNode);
19             this.tv_Folders.Nodes.Add(rootNode);
20             this.tv_Folders.CollapseAll();
21             int a = this.tv_Folders.GetNodeCount(true);
22         }
23 
24         private void BangdingTreeView(TreeNode tr)
25         {
26             foreach (string strPath in Directory.GetDirectories(tr.Text))
27             {
28                 TreeNode currentNode = new TreeNode(strPath);
29                 GetTreeNodesStatus(tv_Folders.Nodes);
30                 tr.Nodes.Add(currentNode);
31                 //更新TreeView函数
32                 SetTreeNodesStatus(tv_Folders.Nodes);
33                 if (Directory.GetDirectories(strPath).Count() > 0)
34                 {
35                     BangdingTreeView(currentNode);
36                 }
37             }
38         }
39 
40         private Hashtable NodesStatus = new Hashtable();
41         private string SelectNodeFullPath = string.Empty;
42 
43         private void GetTreeNodesStatus(TreeNodeCollection nodes)
44         {
45             foreach (TreeNode node in nodes)
46             {
47                 if (node.IsExpanded)
48                 {
49                     NodesStatus[node.FullPath] = true;
50                 }
51                 else
52                 {
53                     NodesStatus.Remove(node.FullPath);
54                 }
55                 if (node.IsSelected)
56                 {
57                     SelectNodeFullPath = node.FullPath;
58                 }
59                 GetTreeNodesStatus(node.Nodes);
60             }
61         }
62 
63         private void SetTreeNodesStatus(TreeNodeCollection nodes)
64         {
65             foreach (TreeNode node in nodes)
66             {
67                 if (NodesStatus[node.FullPath] != null)
68                 {
69                     node.Expand();
70                 }
71                 if (node.FullPath == SelectNodeFullPath)
72                 {
73                     this.tv_Folders.SelectedNode = node;
74                 }
75                 SetTreeNodesStatus(node.Nodes);
76             }
77         }
78 
79         private void tv_Folders_MouseDown(object sender, MouseEventArgs e)
80         {
81             if (e.Button == MouseButtons.Right)//判断点击的是否是右键
82             {
83                 Point ClickPoint = new Point(e.X, e.Y);//获取鼠标点击的坐标
84                 TreeNode CurrentNode = tv_Folders.GetNodeAt(ClickPoint);//在获取的坐标处找节点
85                 if (CurrentNode != null)//判断点击的位置有没有节点
86                 {
87                     CurrentNode.ContextMenuStrip = ctm_rightClickMenus;//给当前获取到的节点属性绑定右键点击事件
88                     string name = tv_Folders.SelectedNode.Text.ToString();//存储节点文本
89                     tv_Folders.SelectedNode = CurrentNode;//把点击获取到的节点设置为选中状态
90                 }
91             }
92         }
93 
94         private void tv_Folders_AfterSelect(object sender, TreeViewEventArgs e)
95         {
96 
97         }
98     }
99 }